US Bridges

N Carpenters Road over Flat Creek

Fair

Allen Parish, Louisiana · 3.5 MI S of LA 26 · Structure no. 070200000000001

Built
2019
6 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
200 ft
5 main spans
Daily traffic
232
2019 count
Owner
County
County Highway Agency

About this bridge

N Carpenters Road over Flat Creek is a prestressed concrete stringer/multi-beam or girder carrying N Carpenters Road over Flat Creek in Allen Parish, Louisiana. It was built in 2019, so it is 6 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 232 vehicles a day, projected to reach 255 by 2039. The structure is 200 ft (61 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesN Carpenters Road
CrossesFlat Creek
Location3.5 MI S of LA 26
RouteCounty Highway 0
CountyAllen Parish
StateLouisiana
Coordinates30.6687, -92.92712
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.9 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadGreater than HL 93
Structure length200 ft (61 m)
Longest span40 ft (12.2 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic232 (2019)
Projected traffic255 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N Carpenters Road over Flat Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is N Carpenters Road over Flat Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does N Carpenters Road over Flat Creek carry?

About 232 vehicles per day (2019 count).

How long is N Carpenters Road over Flat Creek?

The structure is 200 ft (61 m) long with a longest span of 40 ft (12.2 m) and a deck 27 ft wide.

Who owns N Carpenters Road over Flat Creek?

It is owned by the County Highway Agency.